Acinonyx Brookes, 1828 (extant flag source)
Acomys Geoffroy, 1838 (extant flag source)
Acrobates Desmarest, 1817 (extant flag source)
Aepeomys Thomas, 1898 (extant flag source)
Aepyceros Sundevall, 1847 (extant flag source)
Aepyprymnus Garrod, 1875 (extant flag source)
Aeretes G.M. Allen, 1940 (extant flag source)
Aeromys Robinson & Kloss, 1915 (extant flag source)
Aethomys Thomas, 1915 (extant flag source)
Ailuropoda Milne-Edwards, 1870 (extant flag source)
Ailurus Cuvier in Geoffroy & Cuvier, 1825 (extant flag source)
Akodon Meyen, 1833 (extant flag source)
Alcelaphus de Blainville, 1816 (extant flag source)
Alces Gray, 1821 (extant flag source)
Allenopithecus Lang, 1923 (extant flag source)
Alouatta Lacepède, 1799 (extant flag source)
Alticola Blandford, 1881 (extant flag source)
Amblonyx Rafinesque, 1832 accepted as Aonyx Lesson, 1827 (extant flag source)
Amblysomus Pomel, 1848 (extant flag source)
Ammospermophilus Merriam, 1892 (extant flag source)
Andinomys Thomas, 1902 (extant flag source)
Anourosorex Milne-Edwards, 1870 (extant flag source)
Antechinus MacLeay, 1841 (extant flag source)
Anthops Thomas, 1888 (extant flag source)
Antidorcas Sundevall, 1847 (extant flag source)
Antilocapra Ord, 1818 (extant flag source)
Antilope Pallas, 1766 (extant flag source)
Antrozous Allen, 1862 (extant flag source)
Aonyx Lesson, 1827 (extant flag source)
Aotus Illiger, 1811 (extant flag source)
Aotus Humboldt, 1812 accepted as Aotus Illiger, 1811 (extant flag source)
Aplodontia Richardson, 1829 (extant flag source)
Apodemus Kaup, 1829 (extant flag source)
Arctonyx Cuvier in Geoffroy & Cuvier, 1825 (extant flag source)
Arctophoca Peters, 1866 accepted as Arctocephalus Cuvier, 1826 (extant flag source)
Arvicanthis Lesson, 1842 (extant flag source)
Arvicola Lacepède, 1799 (extant flag source)
Asellia Gray, 1838 (extant flag source)
Aselliscus Tate, 1941 (extant flag source)
Ateles Geoffroy, 1806 (extant flag source)
Atilax Cuvier in Geoffroy & Cuvier, 1826 (extant flag source)
Atlantoxerus Major, 1893 (extant flag source)
Auliscomys Osgood, 1915 (extant flag source)
Australophocaena Barnes, 1985 accepted as Phocoena G. Cuvier, 1816 (extant flag source)
Axis Smith, 1827 (extant flag source)
Babyrousa Perry, 1811 (extant flag source)
Baiomys True, 1894 (extant flag source)
Barbastella Gray, 1821 (extant flag source)
Bassariscus Coues, 1887 (extant flag source)
Bathyergus Illiger, 1811 (extant flag source)
Belomys Thomas, 1908 (extant flag source)
Berardius Duvernoy, 1851 (extant flag source)
Bettongia Gray, 1837 (extant flag source)
Bison Smith, 1827 (extant flag source)
Blarina Gray, 1838 (extant flag source)
Blarinella Thomas, 1911 (extant flag source)
Blastocerus Wagner in Schreber, 1844 (extant flag source)
Bolomys Thomas, 1916 accepted as Necromys Ameghino, 1889 (extant flag source)
Bos Linnaeus, 1758 (extant flag source)
Boselaphus de Blainville, 1816 (extant flag source)
Brachylagus Miller, 1900 (extant flag source)
Brachyteles Spix, 1824 (extant flag source)
Bradypus Linnaeus, 1758 (extant flag source)
Bubalus Smith, 1827 (extant flag source)
Budorcas Hodgson, 1850 (extant flag source)
Burramys Broom, 1895 (extant flag source)
Cabassous McMurtrie in Cuvier, 1831 (extant flag source)
Cacajao Lesson, 1840 (extant flag source)
Callicebus Thomas, 1903 (extant flag source)
Callimico Ribeiro, 1912 (extant flag source)
Callithrix Erxleben, 1777 (extant flag source)
Callosciurus Gray, 1867 (extant flag source)
Calomys Waterhouse, 1837 (extant flag source)
Calomyscus Thomas, 1905 (extant flag source)
Caloprymnus Thomas, 1888 (extant flag source)
Caluromys Allen, 1900 (extant flag source)
Camelus Linnaeus, 1758 (extant flag source)
Canis Linnaeus, 1758 (extant flag source)
Caperea Gray, 1864 (extant flag source)
Capra Linnaeus, 1758 (extant flag source)
Capreolus Gray, 1821 (extant flag source)
Caprolagus Blyth, 1845 (extant flag source)
Capromys Desmarest, 1822 (extant flag source)
Cardioderma Peters, 1873 (extant flag source)
Castor Linnaeus, 1758 (extant flag source)
Catagonus Ameghino, 1904 (extant flag source)
Cavia Pallas, 1766 (extant flag source)
Cebus Erxleben, 1777 (extant flag source)
Cephalophus Smith, 1827 (extant flag source)
Cephalorhynchus Gray, 1846 (extant flag source)
Ceratotherium Gray, 1868 (extant flag source)
Cercartetus Gloger, 1841 (extant flag source)
Cercocebus Geoffroy, 1812 (extant flag source)
Cercopithecus Linnaeus, 1758 (extant flag source)
Cerdocyon Smith, 1839 (extant flag source)
Cervus Linnaeus, 1758 (extant flag source)
Chaeropus Ogilby, 1838 (extant flag source)
Chaetodipus Merriam, 1889 (extant flag source)
Chaetophractus Fitzinger, 1871 (extant flag source)
Chironectes Illiger, 1811 (extant flag source)